vimrc: Restore ,v mapping

I can't remember ,vrc so restore the original ,v mapping but have it point
at the .vim directory rather than the rc file.

Change-Id: I3e51f86b895e42a4447fe56333f0d6ff439a47ea
Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
vimrc: Add mapping to generate git-release manifests.

Change-Id: Id4b05b88cf7862a4a639a9335dd640a00c31cbc8
Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>